CVE-2025-61732: Golang 1.10 · A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling
Affects golang-1.10Source GCVE Database
Not known to be exploited · CVSS 8.6 High.
Data as of 9 Nov 2026, 14:32 UTC
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 5 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSgolang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.24pkg:deb/ubuntu/golang-1.24?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.25pkg:deb/ubuntu/golang-1.25?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgolang-1.21pkg:deb/ubuntu/golang-1.21?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgolang-1.22pkg:deb/ubuntu/golang-1.22?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official fix is available, users should exercise caution when building or running cgo binaries from untrusted sources. Monitor official Golang and Ubuntu security advisories for updates.
Description
CVE-2025-61732 is a vulnerability in Golang where a discrepancy in comment parsing between Go and C/C++ allowed code smuggling into the resulting cgo binary. This flaw affects multiple Ubuntu-packaged versions of Golang. The vulnerability has a high severity with a CVSS score of 8.6, indicating significant potential impact on confidentiality, integrity, and availability.
References
- ubuntu.com/security/CVE-2025-61732 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-61732 (opens in a new tab)
- go.dev/cl/734220 (opens in a new tab)
- go.dev/issue/76697 (opens in a new tab)
- groups.google.com/g/golang-announce/c/K09ubi9FQFk (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-4433 (opens in a new tab)